MrCool Advantage Series - Page 15

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Step 6: Connect Signal Cable
The size of the power supply cable, signal cable, fuse,
and switch needed is determined by the maximum
unit current. The maximum unit current is indicated
on the nameplate located on the side panel of the
unit. Refer to this nameplate to choose the right
cable, fuse, or switch.
NOTE: In North America, please choose the right
cable size according to the Minimum Circuit
Ampacity indicated on the nameplate of the unit.
CHOOSE THE APPROPRIATE CABLE SIZE
The air conditioner’s circuit board (PCB) is designed
with a fuse to provide overcurrent protection. The
specications of the fuse are printed on the circuit
board, such as: T3.15A/250VAC, T5A/250VAC, etc.
TAKE NOTE OF FUSE SPECIFICATIONS
1. Prepare the cable for connection:
2. Open front panel of the indoor unit.
3. Using a screwdriver, open the wire box cover on the
right side of the unit. This will reveal the terminal
block.
See Fig. 4.7a on the previous page for wiring diagram.
Wiring diagram also found inside lid of interior unit.
WARNING
All wiring must be performed in accordance with
the wiring diagram Fig. 4.7a shown on the previous
page.
6. Feed the signal wire (protected by conduit) through
this slot, from the back of the unit to the front.
7. Facing the front of the unit, match the wire colors
with the labels on the terminal block, connect the
u-lug and rmly screw each wire to its corresponding
terminal.
CAUTION-DRAIN HOSE PLACEMENT
DO NOT MIX UP LIVE AND NULL WIRES.
This is dangerous, and can cause the air
conditioning unit to malfunction.
8. After checking to make sure every connection is
secure, use the cable clamp to fasten the signal cable
to the unit. Screw the cable clamp down tightly.
9. Replace the wire cover on the front of the unit, and
the plastic panel on the back.
WARNING
THE WIRING CONNECTION PROCESS MAY DIFFER
SLIGHTLY BETWEEN UNITS AND REGIONS.
Model Series (Indoor Unit)
Appliance Amps (A)
MCA MOP
All Capacity Wall-Mounted
Air Handlers
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Step 7: Wrap Piping
Before passing the piping and drain hose through the
wall hole, you must bundle them together to protect
them, insulate them, and save space.
1. Bundle the drain hose and refrigerant pipes
according to Fig. 4.8.
4. Unscrew the cable clamp below the terminal block
and place it to the side.
5. Facing the back of the unit, remove the plastic panel
on the bottom left-hand side.
INDOOR UNIT INSTALLATION
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4.6 Signal Cable Connection
4.7 Wrapping Piping